8791389547942 has 8 divisors (see below), whose sum is σ = 13187170911096. Its totient is φ = 4395665910912.

The previous prime is 8791389547937. The next prime is 8791389547943. The reversal of 8791389547942 is 2497459831978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791389547943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14048763 + ... + 14661190.

It is an arithmetic number, because the mean of its divisors is an integer number (1648396363887).

Almost surely, 2^{8791389547942} is an apocalyptic number.

8791389547942 is a deficient number, since it is larger than the sum of its proper divisors (4395781363154).

8791389547942 is a wasteful number, since it uses less digits than its factorization.

8791389547942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28863062.

The product of its digits is 1097349120, while the sum is 76.

The spelling of 8791389547942 in words is "eight trillion, seven hundred ninety-one billion, three hundred eighty-nine million, five hundred forty-seven thousand, nine hundred forty-two".